1 head lettuce, shredded
1 med. red onion, thinly sliced
1/2 c. chopped bell pepper
1 c. chopped celery
1 can sweet peas (English)
1 pt. Hellmann's mayonnaise

Layer ingredients as listed, using an airtight bowl (tupperware is perfect). Spread the mayonnaise to seal in the edges. Top with 1 cup Parmesan cheese. This can be prepared ahead of time and will not wilt if kept sealed.